It’s not clear exactly when the home video was created but it is thought to have been filmed some years ago, as Tahu Rhodes appears without some of his more recent tattoos.

The Gold Logie-winning actress is reportedly shocked by the emergence of the video but her reps have declined to comment, New Idea reports.

McCune, 43, and Tahu Rhodes are currently starring together in John Frost’s production of The King and I.

McCune as Nellie Forbush and Tahu Rhodes as Emile De Becque in South Pacific.Source:Supplied

The pair struck up a relationship after co-starring in South Pacific in 2012, also produced by Frost. They were both married at the time and were photographed kissing and cuddling in public outside a coffee shop in Melbourne.

Both have refused to discuss their relationship but the New Zealand-born star said earlier this year that he understands the couple’s chemistry made them attractive for Frost to cast.

“I think that’s what makes it work — the chemistry is really important. We’ll leave it at that,” he said.

Frost has also admitted their real-life romance adds a certain frisson.

McCune married Tim Disney in 2000 and they have three children together. The former Blue Heelers star has never publicly confirmed her separation from Disney.

Lisa McCune and Teddy Tahu Rhodes seen kissing in Melbourne in August, 2012.Source:Supplied